Conveyer



c. v. PETERSON Jul '15, 1924.

CONVEYER Filed July 13 1923 2 Sheets-Sheet 1 attorney Jul 15, 1924.

1,501,721 0. v. PETERSQN coNvEYER Filed July 13. 1923 2 sheets sheet 2Patented July 15, 1924.

UNITED STATES CHARLES V. PETER-SON, OF BRAH-AM, MINNESOTA;

ooNvEYER.

Application filed July 13, 1923;

To alt whom it may concern:

Be it known that I, CHARLES V. PETERSON, citizen of the United States,residing at Bra-- ham, in the county of lsanti and State of hlinneso a,have invented certain new and useful Improvements in Conveyers, of whichthe following is a specification.

This invention relates to certain new and useful improvements inconveyors, and has particular reference to conveyers of that type whichemploys a power driven endless conveyer belt.

An object of the invention is to provide means for flexing the upperflight of the belt into-trough-like form so that the same may beeffectively employed for elevating 'dirt, in combination with means forflexing the longitudinal edges of'the lower flight'of the beltdownwardly to insure shedding of dirt therefrom which may fall on to thesame from the upper flight of the belt.

3. further object of the invention is to generally simplify and improveendless belt conveyers so that the same may be employed in a practicalmannerfor elevating dirt into wagons when excavating cellars or otheranalogous operations.

Other objects will appear as the nature of the invention is betterunderstood'and same consists in the novel form, combination andarrangement of parts hereinafter more fully described, shown in theaccompanying drawings and claimed.

In the drawings wherein like reference characters indicate correspondingparts throughout the several views,

Figure l is a side elevational view, partly in section, of a conveyorconstructed in accordance with the present invention,

Figure 2 is a top plan view of the device shown in Figure 1,

Figure 3 is an enlarged transverse sectional view taken substantially,upon line 3-3 of Figure 1,

Figure 4 is an enlarged segmentary sectional View taken substantiallyupon line 44: of Figure 1,

Figure 5 is a view similar to Figure 4 and taken substantially upon line55 of Fig ure 1,

Figure 6 is an enlarged perspective view showing a detail of theinvention, and

Figure 7 is an enlarged elevational view of one of the idler rollersover which the upper flight of the conveyer travels.

Serial No, 651,230.

Referring more in detail to the drawings, theinvention embodies a frameincluding a pair of spaced parallel longitudinal or side boards 5between which are positioned a series of idler rollers 6 which havepintles 7 that are loosely jou-rnaled in said boards 5. These rollersare preferably of spool shape as shown in Figure 7, an'd'an endless belt8 passes over the same so that the marginal edges of the belt, at theupper flight of the same, are flexedupwardly so as to be ofsubstantially troughsh'ap'e in section for the reception of dirtthereon.

The'belt 8 is preferably driven by means of power applied to the rollerat-the upper rear end of the frame, and one means of rotating thisroller is shown consisting in a sprocket wheel Q-fixed upon a projectingend of the pintle of the uppe-r roller and about" which passes anendless sprocket chain 10 which also passes around another sprocketwneel 11 fixed upon tlieadjacentend of a transverse shaft 12, upon theother end of whichis secured a bevel gear- 13 'meshin'g" with abevel-pinion'l l. The pinion 14 is j ournaled in a positionlongitudinally of the conveyer by being mountedupon ashes-.15 which Issupported by a bearing lti secured to the adjacent side board 5, andwell known" fast and loose pulleys 17 and 18 respectively are carriedupon one end of the shaft 15 for selective reception of a driving belt19 to throw the conveyer into and out of operation at will. The belt 19may be driven from any suitable source of power such as a gaso linemotor, not shown.

The conveyer thus constructed is supported in an inclined position bymeans of suitable uprights 20 and 21 respectively located adjacent therear and forward ends of the conveyer frame and rigidly attached to thelatter, suitable braces 22 being provided between the conveyer frame andthese uprights.

As shown in Figures 1+5 and 7, means is provided for flexingthe marginalportion of the lower flight of the belt downwardly so as to insureshedding of dirt therefrom should the same drop thereon from the upperflight of the, conveyer, and this means preferably embodies a pair oftransverse inclined rollers 23 having their lower ends suitablyjournaled in brackets 24 carried by the uprights 21, and having theiradjacent upper ends suitably journaled in a bearing bracket 25 that issupported by a brace 26. The brace 26 is preferably of the form shown inFigure 6 and comprises a strip of metal with flanged ends 27 formed withsuit able apertures for the reception of nails or the like whereby thisbrace is rigidly attached to the conveyer frame. In order to preventabrupt bending of the belt at the longitudinal center of the latter, ahorizontal transverse roller 28 is journaled in a position directly inback of the rollers 28 and in a plane to retain the central portion ofthe belt in a flat condition as is clearly shown in Figure 4. In orderto prevent the lower flight of the belt 8 from sagging downwardly, or,in other words, to hold the belt against the rollers 23 and 2, asuitable idler roller 29 is supported rearwardly of the rollers 23 and28 beneath the belt 8 as shown in Figure 1. This roller 29 is preferablyof the form shown in Figure 5 having its major diameter mid-way betweenits ends and tapering smaller toward its ends so that as the lowerflight of the belt passes over same, said belt is initially flexed forshedding the dirt which may fall thereon.

As shown in Figure 1, suitable scraping knives 80 may be provided at therear side of the foremost rollers 6 for scraping dirt from the latter.

It will thus be seen that I have provided a simple and durable form ofconveyer which may be effectively employed for the elevating of dirtwithout the necessity of employinga special form of traveling conveyermember.

Minor changes may be made without departing from the spirit and scope ofthe invention as claimed.

lVhat I claim as new is 1. A conveyer of the class described comprisingan elongated frame having a longitudinal series of transverse idlerrollers journaled therebetween, an endless belt passing above and belowsaid rollers and having the upper flight thereof resting on said rollerssaid rollers being of spool shape in elevation for troughing the upperflight of the belt transverse oppositely inclined idler rollers abovethe return flight of the conveyer belt for flexing the longitudinaledges of the return flight of the belt downwardly, and a further idlerroller for holding the return flight of the belt in contact with thelower surfaces of said transverse inclined rollers.

2. A conveyer of the class described comprising an elongated framehaving a longitudinal series of transverse idler rollers journaledtherebetween, an endless belt passing above and below said rollers andhaving the upper flight thereof resting on said rollers, said rollersbeing of spool shape in elevation for troughing the upper flight of thebelt, transverse oppositely inclined idler rollers above the returnflight of the conveyer belt for flexing the longitudinal edges of thereturn flight of the belt downwardly, a further idler roller for holdingthe return return flight of the belt in contact with the lower surfacesof said transverse inclined roller, and a horizontal transverse rollerfor preventing bending of the lower flight of the belt along thelongitudinal center thereof, said last named roller being disposeddirectly behind the transverse inclined rollers.

In testimony whereof I afiix my signature.

CHARLES V. PETERSON.

